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§ Private Profile · Pasadena, CA, USA
OpenX is a technology company.
OpenX has raised $91.5M across 6 funding rounds.
Key people at OpenX.
OpenX has raised $91.5M in total across 6 funding rounds.
OpenX operates as an independent supply-side platform, providing an ad exchange for audience, data, and identity targeting. Its 100% cloud-based infrastructure on Google Cloud Platform ensures performance, scalability, and speed. Leveraging advanced AI, OpenX connects publishers with demand, enabling buyers to reach precise audiences across formats.
Founded in 2008 by Tim Cadogan and Jason Fairchild, OpenX arose from the need for an automated, transparent advertising marketplace. Inspired by automated media trading, they established an independent platform. Their goal was to streamline publisher ad inventory connections with advertiser demand, enhancing ecosystem efficiency and clarity.
The platform empowers publishers to maximize revenue and buyers to achieve precise audience targeting. OpenX develops solutions for complex marketing challenges, fostering an efficient advertising landscape. Its vision drives a sustainable, open, transparent programmatic advertising future, delivering value to partners.
OpenX has raised $91.5M across 6 funding rounds. Most recently, it raised $25.0M Series E in January 2013.
Key people at OpenX.
OpenX is a leading independent programmatic advertising technology company specializing in a supply-side platform (SSP) that enables premium digital publishers to monetize their inventory efficiently while providing advertisers with high-quality audience reach through advanced data and identity targeting. Their 100% cloud-based platform, built on Google Cloud, supports real-time bidding across all digital formats including mobile, desktop, and connected TV (CTV), delivering optimized value to both publishers and advertisers. OpenX’s technology focuses on transparency, sustainability, and scalability, serving over 130,000 premium publisher domains and more than 100,000 advertisers globally[1][2][3].
OpenX originated in 1998 as an open-source project offering free digital and mobile advertising technology. It commercialized its ad server in 2008, appointing Tim Cadogan as CEO and expanding its footprint globally. The company evolved from providing open-source tools to becoming a major independent SSP with a focus on programmatic innovation and cloud-based infrastructure. Key milestones include strategic acquisitions of publisher tools Mezzobit and PubNation in 2017 and a full migration to Google Cloud by 2019, which enhanced performance and scalability. Leadership transitioned in 2020 when John Gentry became CEO after Cadogan’s departure[3][4].
OpenX rides the programmatic advertising and digital media monetization trend, which demands efficient, transparent, and scalable solutions for the complex digital advertising ecosystem. The shift to cloud infrastructure and AI-driven optimization aligns with broader market forces emphasizing data privacy, real-time bidding efficiency, and cross-device targeting. OpenX’s independence and transparency position it as a counterbalance to dominant ad tech giants, influencing industry standards around fairness and privacy compliance. Its recent legal action against Google highlights its role in challenging anti-competitive practices in the ad tech space[1][3][4].
Looking ahead, OpenX is likely to continue leveraging cloud and AI technologies to enhance its platform’s efficiency and targeting capabilities, expanding its global reach and product offerings. Trends such as increased regulation on data privacy, growth in CTV advertising, and demand for transparency will shape its evolution. OpenX’s independent stance and technological agility may allow it to capitalize on market shifts favoring open, fair, and privacy-compliant programmatic advertising ecosystems. Its influence could grow as it challenges dominant players and innovates in identity and audience targeting solutions[1][3][4].
OpenX has raised $91.5M in total across 6 funding rounds.
OpenX's investors include Brannon Lacey, Accel, Bessemer Venture Partners, Bowery Capital, Carbide Ventures, DAG Ventures, DFJ, Gideon Yu, General Atlantic, Greylock, Ignition Partners, Index Ventures.
